Add onWorkerStop, remove OnBeforeStart

OnBeforeStart 不知道有什么用

onWorkerStop 这个还挺重要的。如果默认不带，各个组件没法挂载自己的安全退出逻辑。

Author: Reasno

config/autoload/server.php

@@ -39,8 +39,8 @@
         'buffer_output_size' => 2 * 1024 * 1024,
     ],
     'callbacks' => [
-        SwooleEvent::ON_BEFORE_START => [Hyperf\Framework\Bootstrap\ServerStartCallback::class, 'beforeStart'],
         SwooleEvent::ON_WORKER_START => [Hyperf\Framework\Bootstrap\WorkerStartCallback::class, 'onWorkerStart'],
         SwooleEvent::ON_PIPE_MESSAGE => [Hyperf\Framework\Bootstrap\PipeMessageCallback::class, 'onPipeMessage'],
+        SwooleEvent::ON_WORKER_STOP => [Hyperf\Framework\Bootstrap\WorkerStopCallback::class, 'onWorkerStop'],
     ],
 ];